Nacos Java SDK（获取配置addListener）

<dependency>
    <groupId>com.alibaba.nacos</groupId>
    <artifactId>nacos-client</artifactId>
    <version>1.4.1</version>
</dependency>

package com.SCND.Controller;

import com.alibaba.nacos.api.NacosFactory;
import com.alibaba.nacos.api.config.ConfigService;
import com.alibaba.nacos.api.config.listener.Listener;
import com.alibaba.nacos.api.exception.NacosException;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
import java.util.Properties;
import java.util.concurrent.Executor;

@RestController
public class AddListener {

    @GetMapping("/addListener")
    public String testListener() throws NacosException {
        addListener("example.properties","DEFAULT_GROUP",print());
        return "testListener is ok....!";
    }

    public Listener print(){
        System.out.println("callback++++++++++");
        return null;
    }

    public void addListener(String dataId, String group, Listener listener) throws NacosException {

        String serverAddr = "127.0.0.1:8848";
        dataId = "example.properties";
        group = "DEFAULT_GROUP";
        int timeoutMs = 5000;
        Properties properties = new Properties();
        properties.put("serverAddr", serverAddr);
        ConfigService configService = NacosFactory.createConfigService(properties);
        String content = configService.getConfig(dataId, group, timeoutMs);
        System.out.println(content);
        configService.addListener(dataId, group, new Listener() {
            @Override
            public void receiveConfigInfo(String configInfo) {
                System.out.println("recieve:" + configInfo);
            }
            @Override
            public Executor getExecutor() {
                return null;
            }
        });
// 测试让主线程不退出，因为订阅配置是守护线程，主线程退出守护线程就会退出。正式代码中无需下面代码
/* while (true) {
            try {
                Thread.sleep(1000);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }*/
    }
}

链接：https://pan.baidu.com/s/13k_ek_WrzcB1dxXEFwsRtQ
提取码：2zfv